JOURNAL OF ENTOMOLOGY AND ZOOLOGY 207 
Just recently Mr. E. O. Essig sent me Kermes galliformis 
Riley and Kermes cockerelli Ehrh. collected by Mr. EK. J. Brani- 
gan on Cache Creek near Yolo, Yolo County, California, May 16, 
1910, on California black oak, Quercus kelloggii Newb. Here 
they were associated together on the same host plant. AKermes 
cockerelli Khrh. is of a light brown color and strongly gibbose. 
In some of the markings Kermes occidentalis is nearest allied 
to Kermes arizonensis King, found in Arizona. 
Figure 1. a, Kermes occidentalis n. sp.; b, Kermes cockerelli Ehrh.; ¢, Kermea 
galliformis Riley. (Photo by E. O. Essig). 
A COCCID FOUND ON THE SYCAMORE 
H. J. RYAN 
A number of the genus Pseudococcus were found under 
the bark of a syeamore within the limits of Claremont, Cali- 
fornia. Only one tree was found to have these insects 
on it although there were several in the cluster. The 
insects were associated with ants which seemed to be guarding 
them. In general appearance the species appears like P. citri, 
differing, however, in having less prominent lateral appendages, 
callouses on the lateral margins of the segment bearing two short 
spines, and with cireumanal spines of the same length as those 
of the anal lobes. As nearly as has been determined by com- 
parison with the descriptions given for P. quercus, the specimens 
